Drinking vessel



FIG. 1 is a front, left side and top perspective view of a drinking vessel showing the new design;

FIG. 2 is a left side elevation view thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a front elevation view thereof, wherein the rear elevation view is a mirror image;

FIG. 5 is an enlarged top plan view thereof; and,

FIG. 6 is an enlarged bottom plan view thereof.

The broken lines in the drawings depict portions of the drinking vessel that form no part of the claimed design. 

CLAIM The ornamental design for a drinking vessel, as shown and described. 